this culture originates from the Bukit Daun volcano on Sumatra (near Bengkulu)

it belongs to the Phyllium hausleithneri species group. Currently Royce Cummings (USA) examines DNA to determine whether this population is conspecific or different from Phyllium hausleithneri from Peninsular Malaysia

incubation about 4 - 5 months, but some nymphs can hatch even months after the first nymphs